/Engine/Plugins/Experimental/ControlFlows/Source/ControlFlows/Public/ControlFlowTask.h
The flow will execute this function where the bound function takes in a ControlFlowNode. The Flow will pause until ControlFlowNode->CompleteExecution() is called.
[FControlFlowWaitDelegate](API\Plugins\ControlFlows\FControlFlowWaitDelegate) & QueueWait ( int32 BranchIndex, const [FString](API\Runtime\Core\Containers\FString) & FlowNodeDebugName )